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Casing Spear
Patent for casing spears. This invention is designed for pulling well tubes or casings that have broken off out of the well. Illustration included.
Date:
August 25, 1908
Creator:
Carroll, Monroe W. & Johnston, H. G.
System:
The Portal to Texas History
Pumping Apparatus.
Patent for pumping apparatus. This invention provides a means to elevate liquids by use of compressed air. It is specifically intended for deep oil-wells.
Date:
August 25, 1903
Creator:
Cain, Francis Charles & Herrenkind, Oscar Charles
System:
The Portal to Texas History